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Brazilian Archives of Biology and Technology

Print version ISSN 1516-8913

Abstract

SOUZA, Carlos Alberto Spaggiari et al. Cacao yield in different planting densities. Braz. arch. biol. technol. [online]. 2009, vol.52, n.6, pp.1313-1320. ISSN 1516-8913.  https://doi.org/10.1590/S1516-89132009000600001.

The effect of six planting densities on cacao yield of a commercial hybrid mixture as well as the interaction of planting densities with the years were investigated. Crop data collected over a 14-year period (1977-1990) showed that it was possible to optimise the regional cacao yields by implementing high planting densities (2500 and 1736 trees ha-1). This was however only true for the first half of the crop period. In the second half, low planting density (1059 trees ha-1) attained the best yields. This change in the ranking of planting densities over the years confirmed the presence of density-year interaction. Alternatives to achieve high productivity in high planting density systems were presented and discussed.

Keywords : Density-year interaction; high productivity; Theobroma cacao L.

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